![Office of the Fire Marshal on Twitter: "Carbon monoxide alarms sound similar to smoke alarms but there's a difference – do you know it? #ONfire #firesafety https://t.co/sC7mFWXBE0" / Twitter Office of the Fire Marshal on Twitter: "Carbon monoxide alarms sound similar to smoke alarms but there's a difference – do you know it? #ONfire #firesafety https://t.co/sC7mFWXBE0" / Twitter](https://pbs.twimg.com/media/FPGsxfMXwAkcuoC.jpg)
Office of the Fire Marshal on Twitter: "Carbon monoxide alarms sound similar to smoke alarms but there's a difference – do you know it? #ONfire #firesafety https://t.co/sC7mFWXBE0" / Twitter
![meross 10 Year Battery Smoke and Carbon Monoxide Alarm, LED Display Smoke CO Detector Complies with EN 14604 and EN 50291 Standards, Auto-Check, 85dB : Amazon.co.uk: DIY & Tools meross 10 Year Battery Smoke and Carbon Monoxide Alarm, LED Display Smoke CO Detector Complies with EN 14604 and EN 50291 Standards, Auto-Check, 85dB : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/I/61dk+3PXjFS._AC_UF894,1000_QL80_.jpg)
meross 10 Year Battery Smoke and Carbon Monoxide Alarm, LED Display Smoke CO Detector Complies with EN 14604 and EN 50291 Standards, Auto-Check, 85dB : Amazon.co.uk: DIY & Tools
![Kidde Fire Safety on Twitter: "🔔 4 Short Beeps: Urgent – CO has been detected! Immediately leave your home and call 911." / Twitter Kidde Fire Safety on Twitter: "🔔 4 Short Beeps: Urgent – CO has been detected! Immediately leave your home and call 911." / Twitter](https://pbs.twimg.com/media/EWtraZfWsAAxGOX.png)
Kidde Fire Safety on Twitter: "🔔 4 Short Beeps: Urgent – CO has been detected! Immediately leave your home and call 911." / Twitter
![If your CO alarm chirps every 30 seconds, it's not an emergency but you should replace the CO alarm a.s.a.p. - Fire Line If your CO alarm chirps every 30 seconds, it's not an emergency but you should replace the CO alarm a.s.a.p. - Fire Line](https://fireline.seattle.gov//wp-content/uploads/sites/21/2020/03/co_alarm3-1024x682.jpg)
If your CO alarm chirps every 30 seconds, it's not an emergency but you should replace the CO alarm a.s.a.p. - Fire Line
![City of Carlsbad on Twitter: "Do you know the difference between a smoke alarm and carbon monoxide alarm? 3️⃣short beeps means smoke or fire. 4️⃣short beeps means carbon monoxide is detected. Either City of Carlsbad on Twitter: "Do you know the difference between a smoke alarm and carbon monoxide alarm? 3️⃣short beeps means smoke or fire. 4️⃣short beeps means carbon monoxide is detected. Either](https://pbs.twimg.com/media/FBCc_TkWQAMLnWD.jpg:large)